package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) {
        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
            Connection connection= DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                    "root",
                    "root");
            System.out.println("连接数据库成功");
            Statement statement=connection.createStatement();
            String sql="UPDATE user\n" +
                    "SET password='66666',nickname='老八',age=50\n" +
                    "WHERE id=1;";
            int num=statement.executeUpdate(sql);
            if(num>0){
                System.out.println("修改成功");
            }else{
                System.out.println("修改失败");
            }
        }catch (Exception e){
            e.printStackTrace();
        }

    }
}
